Virtual Studio Technology (VST) is an interface for integrating software audio synthesizer and effect plugins with audio editors and hard-disk recording systems. VST and similar technologies use digital signal processing to simulate traditional recording studio hardware with software. Thousands of plugins exist, both commercial and freeware, and VST is supported by a large number of audio applications.
Since version 2.70 Clownfish supports VST Effects ( as part of Voice Changer platform ). Default installation does not have any VST plugins installed - it's up to you to select what do you need. Every effect has it's own GUI control ( opened from Clownfish's menu, or HOTKEY+V )
Your first VST Effect could be the cool RoVee VoiceChanger.
Check list below for some free VST Effects sources.
Installation instructions :
1. Download compatible VST effect
2. Extract or install downloaded VST pack
3. Copy VST effect files (*.dll)
4. Go to Clownfish's installation folder ( ex. C:\Program Files\Clownfish\ )